Southfield — Nearly a month after the slayings of her two sons, Bonny Gotchall cried out for help in locating their killers on Tuesday, saying they robbed her of her sons' precious lives.

Michael Orblych, 48, and William Orblych, 54, were both fatally shot around 12:30 a.m on Feb. 15. The two brothers were killed during a home invasion on the 14800 block of Ashton Street near Eaton and Southfield Road in Detroit.

Michael, known as Teague, and William, better known as Troy, were in the basement of their home when their brother, Trent Orblych, and sister, Holly Gotchall, went outside to retrieve packages from their car and saw two men crossing the street toward them.

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Crime Stoppers of Michigan is offering a $2,500 reward for information into the deaths of brothers Michael Orblych and William Orblych.(Photo11: Sarah Rahal / The Detroit News)

The two men robbed them and demanded their car keys. The suspects forced the brother and sister into the back of the home at gunpoint. While in the house, the suspects heard the two brothers in the basement and proceeded to ask “who is in the basement?” Their mother, Bonny, said “two grown men,” and they replied “we’ll kill them, too,” she said. Their mother screamed for help.

“I told them to take my car, but they took the only thing that mean anything to me. They took two of my six kids,” Gotchall said.

Bonny Gotchall, mother of Troy and Teague Orblych says the robbers didn’t take anything from the home except two of her six children. A $2,500 reward is being offered by Crime Stoppers for information leading to suspects arrests. pic.twitter.com/XyJx8xxAG0

Michael and William ran up the stairs and followed the suspects out the back door and shots were fired. The suspects fled the scene, and both brothers were taken to a nearby hospital where they died.

Holly Gotchall said their heroism led to their deaths, she said.

“I tried to stop him, but they didn’t listen to me,” Holly Gotchall said. “All Troy had was a broom. They died because they wouldn’t let anyone hurt us.”

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Holly Gotchall talks about the loss of her two brothers.(Photo11: Clarence Tabb Jr., The Detroit News)

Crime Stoppers of Michigan is offering up to $2,500 for information that leads to an arrest over the double homicide.

William graduated from Redford High School and also attended Wayne State University where he studied history. He worked for five years as an assistant manager at Walmart in Livonia.

Michael graduated from Cass Technical High School and Wayne State University with a master's degree in library science. He was employed as a librarian at the University of Michigan Dearborn for 17 years.

Both brothers enjoyed participating as historical re-enactors.

Raya Samet, a librarian at UM and colleague of Michael, said they worked side-by-side, and he will be forever missed.

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Tod Orblych asked the public to come forward with any information about the crime.(Photo11: Clarence Tabb Jr., The Detroit News)

“He had a heart of gold and a love for others,” Samet said. “He was always willing to help others and work won’t be the same without him.”

Their other brother, Tod Orblych, said he last saw the pair when they dropped him off at the airport for a flight to New York.

“Whoever did this didn’t take anything from the house, but took two of my best friends, and I don’t have many. ... My last memory is watching them drive off dropping me at the airport the day before the incident,” Tod Orblych said.

Crime Stoppers is offering an extra $1,000 to the reward for tips that lead to the arrest before midnight Tuesday.

Anyone with information can make an anonymous call to Crime Stoppers at (800) SPEAK UP or online www.1800speakup.org.